[ts-7000] Error running insmod: "Uknown symbol add_preempt_count" (TS-7260, 2.6.21-ts)

["ksudeadeye81" <>]

Hey All:

I'm officially punting on this one. I've got a TS-7260 booting from this SD 
card image:

ftp://ftp.embeddedarm.com/ts-arm-sbc/ts-7260-linux/binaries/ts-images/ts7260-linux2.6-etch.dd.bz2

I need to re-compile a kernel module (the cdc-acm USB driver) with custom 
changes and install it on the board. I started with the source for the 
2.6.21-ts kernel located here:

ftp://ftp.embeddedarm.com/ts-arm-sbc/ts-7260-linux/sources/tskernel-2.6.21-ts-src.tar.gz

I made my changes, recompiled with the EABI toolchain (tried the OABI toolchain 
as well), copied the new module over to the board, and got these errors when I 
ran insmod:

cdc_acm: Unknown symbol add_preempt_count
cdc_acm: Unknown symbol sub_preempt_count

Here's the thing...this error has NOTHING to do with the kernel's preemption 
configuration at compile time. Both the original cdc-acm driver and my modified 
driver have EXACTLY the same vermagic string:

depends:        usbcore
vermagic:       2.6.21-ts preempt mod_unload ARMv4 

I've asked Technologic for the .config file associated with the kernel in the 
SD card image because I couldn't find it in /boot, but I haven't heard back.

Any help would be much appreciated.

Thanks.



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